磁极

The PMSM rotor magnet polarity is first identified using the proposed intelligent approach. Then it is smoothly started in synchronous motor mode in unidirection.

永磁同步马达转子之磁极位置先由所提之智慧型策略侦测判定，然后设定电流控制脉宽调变机构之启始相位，使PMSM以同步马达模式非反向起动。

The last field reversal happened nearly 800,000 years ago. Fred Flintstone and our other ancestor cavemen survived.

地球磁极确实会翻转，上一次发生在80万年前，当时我们的祖先远古洞穴人们都活得好好的。

An electromagnetic device with two poles, used for magnetizing, demagnetizing, and finding short-circuited coils.

短路线圈测试仪有两个可调磁极的电磁装置，用来磁化、非磁化或测试短路线圈

The magnetic poles are far more restless.

磁极更是不平静。

And, there's a risk of our planet's poles switching.

这可能会引起我们这个星球的磁极转换。

We talked about the possible influence of the inner core on this process of how the field reverses.

我们谈论内核在磁极怎样翻转的过程中可能起的作用。

When the magma cools and solidifies,volcanic rock. Reversals of the field give rise to a series of magnetic

岩浆冷却并凝固下来后，地磁场的方向和磁极被保留在磁化了的火山岩中。

Generally speaking, polarity does not remain only on one side of the pole forever; it vacillates from one side unto the other and should in fact have equal time, energy and focus on both sides .

一般而言，极性不会总是只停留在磁极的一边；它会从一边摇摆到另一边并事实上应该是以均等的时间和能量摇摆且聚焦在两边。

An appropriate balancing current and a set of indeplendent magnetic pole current can reduce magnetic coupling.

选择适当大小的平衡位置电流及对磁极电流单独控制可以减小磁耦合。

It is taken as an object researched that a large pumped storage machine with unsymmetrical damper winding, radial pole and three-piece-arc-pole shoe.

本文以具有不对称阻尼绕组、向心式磁极和三段圆弧极靴结构的大型抽水蓄能电机作为研究对象。

John Robbins lives with his family in Santa Cruz, California.

约翰罗宾和家人居住在加利福尼亚州的圣克鲁斯县。

The international background is mainly the economic ties among different nations tented to be widen and deepen at the peace and development times.

国际背景主要是和平与发展时代条件下的世界各国经济贸易联系的日益加深。